Sponge with suction cup



FIG. 1 is a top perspective view for my design for a sponge with suction cup;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is an end elevation view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a bottom perspective view thereof. 

CLAIM The ornamental design for a sponge with suction cup, as shown and described. 